Business Segments - Schedule of Depreciation Expense by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Segment Reporting [Line Items]
Depreciation expense	$ 12,354	$ 12,602	$ 24,639	$ 25,608
Contract talent solutions
Segment Reporting [Line Items]
Depreciation expense	6,048	6,219	12,013	12,717
Permanent placement talent solutions
Segment Reporting [Line Items]
Depreciation expense	2,141	2,043	4,163	4,141
Protiviti
Segment Reporting [Line Items]
Depreciation expense	$ 4,165	$ 4,340	$ 8,463	$ 8,750